Mechanical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Mechanical Engineering Interview Questions

Questions Answers Views Company eMail

IN AC mechanical fuelpump what stands for AC? IN SU mechanical fuelpump what stands for su?

Nissan,

3348

1hp=how much rpm

Fiat, MAHINDRA,

2 8892

how many kinds of bearing?

ACC, JSW,

3 9035

what are the main problems of solar electrical systems? to make quality control on, which parameters that need so?

2051

what are the main challenges with solar energy system?

2197

how many psi to one bar?

6 9120

what is the different between mechanical starter vs electrical starter? Solid stage starter? Soft starter?

Infosys,

2305

A fan is handling hot air at 285 degC with flow of 411635 m3/hr, power consumed is 1165kW and efficiency is 66%. what will happen to flow, power and efficiency of the fan if a water spray system is introduced to reduce the air temperature up to 200 degC? (also please refer any document regarding this)

1909

have a clutchless car or bike clutch for power transmission???

2110

gearless vehicle used which type of gearbox and do this work????

JCET,

2181

What is Temperature ?

Dr Reddys, Reddy Labs,

5 8556

what is difference between pipe and tube.

Jaiprakash, Sterlite,

4 10141

difference between wps & pqr

MRF, Spicer India, TCS,

3 14134

1. Centrifugal pump is used to drain the coolant from the machine to coolant tank via magnetic separator and paper filter. But more foam is raising in the coolant tank. We need to arrest the foam formation inside tank which is nt desired. How do we correct this issue? (Hardness of the water is at recommended ppm).

Nissan,

2 5147

1) Any pipe line working fluid may water / steam on it one manual isolation valve suppose one side of valve 6 kg/ cm^2 pressure (i.e. up stream) and other side is “ 0” kg/ cm^2 pressure(i.e. down stream) . So how much Tourqe required for opening the valve in terms of Newton force wheather normal man can open this valve. (for reference pipe nominal bore is 100 NB )

Ansaldo,

1878

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Un-Answered Questions { Mechanical Engineering }

In a four-stroke diesel engine, In what engine exhaust valve will open?

2010

What is the difference between gear motor and a stepper motor? Like i want to use gear motor for its excessive torque to move my robot. Can i use stepper motor instead?

2011

What is function (in details) room sensor and tube or coil sensor in HVAC system?

1624

WHAT IS EASY & PERFECT METHOD TO JOIN CONVEYOR BELTSEXPLAIN IN DETAIL

1920

What are examples of a first class lever?

1047

hall ticket copy

2636

why we do not megger to motor under system is very high vaccum condition. and what is the tempreture of vaccum conditon

1984

HOW CAN WE MEASURE THE L SHAPE SURFACE OF THE MOMENT OF INERTIA AND SECTION MODULUS

1952

Explain the uses of windmill?

1061

What does f.o.f. Stand for in piping design?

1182

Pl. brief me about geometrical test & positional accuracy of machine tool.

2269

I am much interested to join airforce but I heard that this is not so good for girls .please give ur views that what should I should do

2393

How to stoped water tube boiler

1976

Define a positive displacement pump?

1056

What is the formula for heat loss in a pipe?

1082

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